678201179425 has 144 divisors (see below), whose sum is σ = 1121787950976. Its totient is φ = 396760320000.

The previous prime is 678201179399. The next prime is 678201179429. The reversal of 678201179425 is 524971102876.

It is not a de Polignac number, because 678201179425 - 2⁹ = 678201178913 is a prime.

It is a super-2 number, since 2×678201179425² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (678201179429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 134268150 + ... + 134273200.

It is an arithmetic number, because the mean of its divisors is an integer number (7790194104).

Almost surely, 2^678201179425 is an apocalyptic number.

It is an amenable number.

678201179425 is a deficient number, since it is larger than the sum of its proper divisors (443586771551).

678201179425 is a wasteful number, since it uses less digits than its factorization.

678201179425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480 (or 5464 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 678201179425 in words is "six hundred seventy-eight billion, two hundred one million, one hundred seventy-nine thousand, four hundred twenty-five".